int potPin = 5; int ledPin = 13; long count = 0; int on = LOW; void setup() { pinMode(ledPin, OUTPUT); Serial.begin(19200); } void loop() { int val = analogRead(potPin); if(count<0){ on = on==HIGH ? LOW : HIGH; digitalWrite(ledPin, on); Serial.print(millis()); Serial.print(":"); Serial.println(val); count = val*10; } count--; }